> rpm -ivh EMCpower.LINUX-5.1.0-194.rhel5.x86_64.rpm

Preparing...                ########################################### [100%]

Expecting RedHat RHEL5 system.

Found RedHat RHEL5.6 system.

error: %pre(EMCpower.LINUX-5.1.0-194.x86_64) scriptlet failed, exit status 1

error:   install: %pre scriptlet failed (2), skipping EMCpower.LINUX-5.1.0-194

[root@hulx048 emcpowerpath]# uname  -a

Linux hulx048 2.6.18-238.12.1.el5xen #1 SMP Tue May 31 13:35:45 EDT 2011 x86_64 x86_64 x86_64 GNU/Linux